Improper Public Key Authentication in cURL Affects Multiple Users
CVE-2025-15224

3.1LOW

Key Information:

Vendor

Curl

Status
Vendor
CVE Published:
8 January 2026

What is CVE-2025-15224?

A vulnerability in cURL during SSH-based file transfers using SCP or SFTP can lead to improper public key authentication. When users are prompted for public key authentication, cURL incorrectly interacts with a locally running SSH agent, potentially allowing unauthorized access during transfers. This issue underscores the need for users to ensure they are using secure configurations to mitigate risks.

Affected Version(s)

curl 8.17.0

curl 8.16.0

curl 8.15.0

References

CVSS V3.1

Score:
3.1
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Harry Sintonen
Harry Sintonen
.